Classifications
cordiform
isoperimetric
Graticule
Meridians: Complex curves.
Parallels: Complex curves.
Poles: Points.
Symmetry: Symmetric east-west, north-south.
Scale
Correct along all parallels and meridians in the default aspect.
Origin
Apparently equivalent to a projection described by Leszek Pernarowski in 1970. Independently developed by Daniel “daan” Strebe (1962–) in 2005.